* {
  margin: 0;
  border: 0;
  padding: 0;
}
li {
  list-style: none;
}
.container {
  /*overflow: hidden;*/
}
.container li {
  float: left;
  width: 400px;
  height: 400px;
  position: relative;
  margin: 30px;
}
.container li div {
  position: absolute;
  border-radius: 50%;
  border: 2px solid #ccc;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  z-index: 3;
}
.container li div dd {
  position: absolute;
  width: 30px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  border-radius: 50%;
  border: 2px solid #ccc;
  background: #fff;
  z-index: 3;
  transform: translate(-50%, -50%);
}
.container li .big4 {
  width: 396px;
  height: 396px;
}
.container li .big3 {
  width: 296px;
  height: 296px;
}
.container li .big2 {
  width: 196px;
  height: 196px;
}
.container li .big1 {
  width: 106px;
  height: 106px;
}
.container li .last4 {
  width: 396px;
  height: 396px;
}
.container li .last3 {
  width: 296px;
  height: 296px;
}
.container li .last2 {
  width: 196px;
  height: 196px;
}
.container li .last1 {
  width: 106px;
  height: 106px;
}
.container li .center {
  width: 30px;
  height: 30px;
  background: #fff;
  text-align: center;
  line-height: 30px;
  position: absolute;
  border-radius: 50%;
  border: 2px solid #ccc;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  z-index: 3;
}
.container li dt {
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto 0;
  width: 400px;
  height: 2px;
  background: #ccc;
  z-index: 1;
}
.analyze {
  width: 600px;
  padding: 50px;
}
.analyze dt {
  width: 600px;
  color: #FF0000;
}
.analyze dd {
  width: 600px;
  margin-top: 30px;
  color: blue;
}
.return {
  width: 200px;
  margin: 50px 300px;
}
.return button {
  width: 100px;
  height: 50px;
  background: blue;
  color: #fff;
  border-radius: 10px;
  font-size: 16px;
}
